Financial Incentive
Othermoney
Completed
NCT Number: NCT02569411
Contacting Authors to Retrieve Individual Patient Data
The objective of this study is to examine the impact of incentivizing authors of RCTs that are eligible for a systematic review and meta-analysis, versus usual contact strategies to obtain original IPD
Completed
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Who can participate
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- Corresponding authors of RCTs included in our previous and updated systematic reviews
Exclusion criteria
Treatment and study plan
Primary outcomes
-
Proportion of Authors Who Provided Complete IPD
Time frame: June 2016 - October 2016
We contacted authors of eligible studies from June 2016 to October 2016. Authors were first contacted in June 2016, where we sent: a) an email requesting their IPD, b) email reminders (4 in total) at 2, 6, 10, and 14-week intervals after the initial email, c) reminders by post in week 7, and d) reminders via telephone in week 15.
Secondary outcomes
-
Time Taken to Obtain the IPD Between Initial Request and Authors' Provision
Time frame: June 2016 - October 2016
We contacted authors of eligible studies from June 2016 to October 2016. Authors were first contacted in June 2016, where we sent: a) an email requesting their IPD, b) email reminders (4 in total) at 2, 6, 10, and 14-week intervals after the initial email, c) reminders by post in week 7, and d) reminders via telephone in week 15.
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The Completeness of the IPD Received
Time frame: June 2016 - October 2016
We contacted authors of eligible studies from June 2016 to October 2016. Authors were first contacted in June 2016, where we sent: a) an email requesting their IPD, b) email reminders (4 in total) at 2, 6, 10, and 14-week intervals after the initial email, c) reminders by post in week 7, and d) reminders via telephone in week 15.
Sponsors and collaborators
Lead sponsor
Unity Health Toronto
Other
Registry information
Official study title
Contacting Authors to Retrieve Individual Patient Data: Protocol for a Randomized Controlled Trial
Important dates
- Study start
- 2016
- Primary completion
- 2018
- Study completion
- 2018
- First posted
- Oct 6, 2015
- Registry last updated
- Jul 1, 2020
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.